Monday, February 2, 2015

Step 12: Inflation of Prices

Inflation

  • rise in general level of prices
  • standard rate: 2% to 3%

Measuring Inflation 

  • Inflation Rate
    • measures percentage increase of price level over time
    • key indicator of economy's health
    • Deflation
      • decline in general price level
    • Disinflation
      • occurs when inflation rate itself declines
  • Consumer Price Index (CPI)
    • measures inflation by tracking the yearly price of a fixed basket of goods and services
    • indicates changes of cost of living and price level

Solving Inflation Problems

  • Finding inflation rate using market basket data

((current year market basket data - base year market basket data) / base year market basket data) x 100
  • Finding inflation rate using price indexes

((current year price index - base year price index) / base year price index) x 100
  • Estimating inflation rate using the rule of 70
    • used to calculate number of years it takes for price level to double at any given rate

years needed to double inflation = 70 / annual inflation rate
  • Determining real wages

(nominal GDP / price level) x 100
  • Finding real interest rate
 nominal interest rate - inflation premium
    • Real interest rate
      • cost of borrowing or lending money adjusted (expressed as %) for expected inflation
    • Nominal interest rate
      • unadjusted cost of borrowing or lending money

Causes of Inflation

  • Demand - pull inflation
    • caused by excess of demand over output that pulls prices upward
  • Cost - push inflation
    • caused by rise in per unit production cost due to increase of resource cost

Effects of Inflation

Anticipated v.s. Unanticipated inflation

Hurt by Inflation

  • fixed income
  • savers
  • lenders/creditors

Helped by Inflation

  • borrowers
    • debt will be repaid with cheaper dollars than that which was loaned out*
  • fixed contract

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